Planetary hours
in Leuven.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Saturday, 10 October 2026: day of Saturn
- Sunrise
- 07:55
- Sunset
- 18:59
- Next sunrise
- 07:57
A day hour lasts 55 min; a night hour, 1h 05m. Local time (Europe/Brussels).
Day
- 1♄︎ Saturn07:55 – 08:51
- 2♃︎ Jupiter08:51 – 09:46
- 3♂︎ Mars09:46 – 10:41
- 4☉︎ Sun10:41 – 11:37
- 5♀︎ Venus11:37 – 12:32
- 6☿︎ Mercury12:32 – 13:27
- 7☽︎ Moon13:27 – 14:23
- 8♄︎ Saturn14:23 – 15:18
- 9♃︎ Jupiter15:18 – 16:13
- 10♂︎ Mars16:13 – 17:08
- 11☉︎ Sun17:08 – 18:04
- 12♀︎ Venus18:04 – 18:59
Night
- 1☿︎ Mercury18:59 – 20:04
- 2☽︎ Moon20:04 – 21:09
- 3♄︎ Saturn21:09 – 22:14
- 4♃︎ Jupiter22:14 – 23:18
- 5♂︎ Mars23:18 – 00:23
- 6☉︎ Sun00:23 – 01:28
- 7♀︎ Venus01:28 – 02:33
- 8☿︎ Mercury02:33 – 03:38
- 9☽︎ Moon03:38 – 04:43
- 10♄︎ Saturn04:43 – 05:47
- 11♃︎ Jupiter05:47 – 06:52
- 12♂︎ Mars06:52 – 07:57
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Saturday, 10 October 2026, the Sun rises at 07:55 and sets at 18:59: the day lasts 11h 04m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:57, lasts 12h 58m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
Saturn, from 07:55 to 08:51: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.